Other than the previously addressed button orientation breaking my brain I had a good time. Level 1,Easy easily lured me into a false sense of security and confidence.
Hits and misses changing the fish on the line's direction is great, so good you should turn it into a true measure for how close the player is to the fail-state! Level 3 did not end after the song, but I made a decent bit of $$$. Give me a dark theme for the play field and you can have all my hard-earned fish-bucks. Great play, good job!